FL77904 - Phase-cut Dimmable Compact LED Direct AC Driver
... components (RCS and CVDD). With 4 integrated high voltage current sink, LED current in each string is precisely controlled with system compactness. High PF and low THD are obtained by the optimized current sink levels. Phase-cut dimming is easily obtained with wide dimming range and good dimmer comp ...
... components (RCS and CVDD). With 4 integrated high voltage current sink, LED current in each string is precisely controlled with system compactness. High PF and low THD are obtained by the optimized current sink levels. Phase-cut dimming is easily obtained with wide dimming range and good dimmer comp ...
AND9441 - Current Limits in Electronic Fuses using Direct
... to limit current, the same function provided by any fuse or positive temperature coefficient device (PTC). An eFuse, however, provides this function with much more versatility than either of these devices. An eFuse, unlike a standard fuse, need not be replaced after it functions and eFuses also resp ...
... to limit current, the same function provided by any fuse or positive temperature coefficient device (PTC). An eFuse, however, provides this function with much more versatility than either of these devices. An eFuse, unlike a standard fuse, need not be replaced after it functions and eFuses also resp ...
Battery concepts for smart utility meters
... from manufacturers D and E were stored upsidedown at 100 °C for 6 weeks. The batteries were then opened (under observance of safety regulations), and the covers and current collectors were separated, cleaned and inspected under a microscope. In the case of manufacturer D, the glass on the inner side ...
... from manufacturers D and E were stored upsidedown at 100 °C for 6 weeks. The batteries were then opened (under observance of safety regulations), and the covers and current collectors were separated, cleaned and inspected under a microscope. In the case of manufacturer D, the glass on the inner side ...
Electrical Safety * NFPA Requirements
... - Cord-connected equipment/normal polarity/ground intact- 100uA - Cord-connected equipment/normal polarity/ground disconnected - 500uA - When multiple devices are connected together and more than one power cord supplies power, the devices shall be separated into groups according to their power suppl ...
... - Cord-connected equipment/normal polarity/ground intact- 100uA - Cord-connected equipment/normal polarity/ground disconnected - 500uA - When multiple devices are connected together and more than one power cord supplies power, the devices shall be separated into groups according to their power suppl ...
Effect of Crude Glycerin on a Membrane- less Single
... For the anode, an aluminum mesh was shaped to be a cylindrical container of packed activated carbon granules and also behaved as a current collector to mediate the electron movement from the anode to cathode. For the cathode, a cylindrical mesh was coated with a mixture of silicone and carbon black ...
... For the anode, an aluminum mesh was shaped to be a cylindrical container of packed activated carbon granules and also behaved as a current collector to mediate the electron movement from the anode to cathode. For the cathode, a cylindrical mesh was coated with a mixture of silicone and carbon black ...
News on DC-DC converter ASICs
... Does not lead to reduced power: the current is just shunted in a resistor. Combination with storage caps might be considered. ...
... Does not lead to reduced power: the current is just shunted in a resistor. Combination with storage caps might be considered. ...
Integrated logarithmic amplifiers for industrial
... The drawback of this circuit is that VOUT depends not only on IIN but also on m, IS(T), and VT, all of which are either current- or temperature-dependent. • The correction factor, m, takes into account the deviation between the diode characteristic and Shockley’s simplified theory of diodes. However ...
... The drawback of this circuit is that VOUT depends not only on IIN but also on m, IS(T), and VT, all of which are either current- or temperature-dependent. • The correction factor, m, takes into account the deviation between the diode characteristic and Shockley’s simplified theory of diodes. However ...
MX Programmable Power Source flyer
... Using the latest DSP technology, the MX Series programmable controller is capable of generating harmonic waveforms to test for harmonics susceptibility. The Windows Graphical User Interface program can be used to define harmonic waveforms by specifying amplitude and phase for up to 50 harmonics. The ...
... Using the latest DSP technology, the MX Series programmable controller is capable of generating harmonic waveforms to test for harmonics susceptibility. The Windows Graphical User Interface program can be used to define harmonic waveforms by specifying amplitude and phase for up to 50 harmonics. The ...
UCC2837 数据资料 dataSheet 下载
... The UCC3837 Linear Regulator Controller includes all the features required for an extremely low dropout linear regulator that uses an external N-channel MOSFET as the pass transistor. The device can operate from input voltages as low as 3V and can provide high current levels, thus providing an effic ...
... The UCC3837 Linear Regulator Controller includes all the features required for an extremely low dropout linear regulator that uses an external N-channel MOSFET as the pass transistor. The device can operate from input voltages as low as 3V and can provide high current levels, thus providing an effic ...
PDF
... Fig. 4 global model of supply studied for a magnetron The figure 4 shows the incorporation of the equivalent circuit in π of the transformer in the power supply from the electric and magnetic equations of its operation. The advantage of this model is presented in its single-phase equivalent circuit ...
... Fig. 4 global model of supply studied for a magnetron The figure 4 shows the incorporation of the equivalent circuit in π of the transformer in the power supply from the electric and magnetic equations of its operation. The advantage of this model is presented in its single-phase equivalent circuit ...
2SD1980
... Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no respo ...
... Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no respo ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331
... Recently DC-DC conversion technique has developed in recent years, since it is required to reach a high power density, high-voltage transfer gain and high power efficiency. Double-output DC-DC converters convert the positive input source voltage to positive and negative output voltages. They consist ...
... Recently DC-DC conversion technique has developed in recent years, since it is required to reach a high power density, high-voltage transfer gain and high power efficiency. Double-output DC-DC converters convert the positive input source voltage to positive and negative output voltages. They consist ...
Review: To Investigate Impacts of Various Factors on the
... Load & Faults taking place on line. As a result Voltage collapse take place & it is undesirable for Secure & Economic operation of line. Such problems can be mitigated by providing sufficient margin of power transfer but in practice is not possible due to Expansion of Transmission Network. Another t ...
... Load & Faults taking place on line. As a result Voltage collapse take place & it is undesirable for Secure & Economic operation of line. Such problems can be mitigated by providing sufficient margin of power transfer but in practice is not possible due to Expansion of Transmission Network. Another t ...
4-20 mA Current Loop Configurations
... 5. Three-Wire Transmitter with Two Independent 4-20 mA Signals Three-wire transmitters may have more than one 4-20 mA output signal. The BAPI-Stat room unit is a good example; it contains two independent 4-20 mA transmitters. As in the previous example, three-wire transmitters are supplied with powe ...
... 5. Three-Wire Transmitter with Two Independent 4-20 mA Signals Three-wire transmitters may have more than one 4-20 mA output signal. The BAPI-Stat room unit is a good example; it contains two independent 4-20 mA transmitters. As in the previous example, three-wire transmitters are supplied with powe ...
PCB manual - Notes Milenge
... at or near full load (i.e. with iron lo-: full load copper loss ratio of 1: 1). Power transformers are designed to have considerable gre: leakage reactance than is permissible in distribution transformers because in power tr: formers inherent voltage regulation is not as much important as current li ...
... at or near full load (i.e. with iron lo-: full load copper loss ratio of 1: 1). Power transformers are designed to have considerable gre: leakage reactance than is permissible in distribution transformers because in power tr: formers inherent voltage regulation is not as much important as current li ...
VA7800 Series Electric Valve Actuators Catalog Page
... The VA7800 Series of electric valve actuators control VG7000 Series Bronze Globe Valves in HVAC systems. The VA7800 Series produce a minimum linear output force of 180 lb (800 N) and are ordered field mounted or factory coupled to 1/2 through 2 in. VG7000 Series Bronze Globe Valves. All actuators ar ...
... The VA7800 Series of electric valve actuators control VG7000 Series Bronze Globe Valves in HVAC systems. The VA7800 Series produce a minimum linear output force of 180 lb (800 N) and are ordered field mounted or factory coupled to 1/2 through 2 in. VG7000 Series Bronze Globe Valves. All actuators ar ...
Halogen Lamp Modeling For Low Voltage Power - HAL
... The main line voltage is firstly rectified by the full-bridge rectifier and the DC bus capacitor is fully charged. The power stage is a half-bridge inverter, supplied from the power line, which delivers the power to the lamp by passing through the high frequency transformer (HFT). The two inverters ...
... The main line voltage is firstly rectified by the full-bridge rectifier and the DC bus capacitor is fully charged. The power stage is a half-bridge inverter, supplied from the power line, which delivers the power to the lamp by passing through the high frequency transformer (HFT). The two inverters ...
lecture notes from ECS303
... by a battery; ac voltage is produced by an electric generator. Current and voltage are the two basic variables in electric circuits. The common term signal is used for an electric quantity such as a current or a voltage (or even electromagnetic wave) when it is used for conveying information. Engine ...
... by a battery; ac voltage is produced by an electric generator. Current and voltage are the two basic variables in electric circuits. The common term signal is used for an electric quantity such as a current or a voltage (or even electromagnetic wave) when it is used for conveying information. Engine ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.